Re: Would love to see the look...
The sad thing is the Maxi you drove might well have been in fine form, the gearboxes were "all like that sir". They had a remote cable change (which is still pretty dismal in my Accent) but in those it could have been classified as cruel and unusual punishment. I can double decluch but the trick I use on the 1/2 gate is to flick into neutral - which makes it smoother (ie it'll find 2nd) - and my cars fitted with the later rod change box.
But if you want terrifying you can still get a supercharger kit for the Landcrab 1800 engine (it's basically the MGB motor) that'll give you at least 120hp.. 50% over stock..
Apparently there's only 8 '71 18/85 cars on the road.
If you haven't found it already, have a look at www.aronline.co.uk. I think they've a new article on the Special Products Maxi - kinda what you'd get if the BMW M-series engineers got let loose on a Maxi..